1 Select the correct answer.
I + 3
Which expression is equivalent to 12 – 21
12 + 21 - 3
I + 1 if no denominator equals zero?
3
O A.
OB.
12 – 21
3
1
2 - 41 + 3
1
12 + 21 - 3
OC.
OD.
I + 3
I + 1
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an advantage of the standard deviation is that it increases as the dispersion of the data increases. e. the interquartile range is preferred when the data are not skewed or no have outliers. an advantage of the standard deviation is that it uses all the observations in its computation.

y = 2x

step-by-step explanation:

if you divide each number in the sequence, you'll see that they all have a multiple factor of 2. each number in the series, and any other numbers which may continue, will be multiplied by 2. therefore, y is the next number in the sequence, and x is the current one, so, our formula will be y = 2x.

x=-7

step-by-step explanation:

x+3=-10

-10+3=-7

x=-7